Planet FGSW-2620VM User Manual page 90

Priority:
Admin P2P:
Admin Edge:
Admin Non STP:
Path cost "0" is used to indicate auto-configuration mode. When the short path cost method is selected
and the default path cost recommended by the IEEE 8021w standard exceeds 65,535, the default is set
to 65,535.
By default, the system automatically detects the speed and duplex mode used on each port, and configures the path cost
according to the values shown below.
Port Type
Ethernet
Fast Ethernet
Gigabit Ethernet
Port Type
Ethernet
Fast Ethernet
Gigabit Ethernet
Decide which port should be blocked by setting its priority as the lowest. Enter a
number between 0 and 240.
The value of priority must be the multiple of 16.
The rapid state transitions possible within RSTP are dependent upon whether the
port concerned can only be connected to exactly another bridge (i.e. it is served
by a point-to-point LAN segment), or can be connected to two or more bridges
(i.e. it is served by a shared medium LAN segment). This function allows the P2P
status of the link to be manipulated administratively.
•
YES means the port is regarded as a point-to-point link.
•
NO means the port is regarded as a shared link.
•
AUTO means the link type is determined by the auto-negotiation between
the two peers.
The port directly connected to end stations won't create bridging loop in the
network. To configure the port as an edge port, set the port to "YES" status.
The port includes the STP mathematic calculation.
•
YES is not including STP mathematic calculation.
•
NO is including the STP mathematic calculation.
IEEE 802.1D-1998
50-600
10-60
3-10
Table 4-5-1: Recommended STP Path Cost Range
Link Type
Half Duplex
Full Duplex
Trunk
Half Duplex
Full Duplex
Trunk
Full Duplex
Trunk
Table 4-5-2: Recommended STP Path Costs
IEEE 802.1w-2001
200,000-20,000,000
20,000-2,000,000
2,000-200,000
IEEE 802.1D-1998
100
95
90
19
18
15
4
3
90
User's Manual of FGSW-Series
IEEE 802.1w-2001
2,000,000
1,999,999
1,000,000
200,000
100,000
50,000
10,000
5,000